1. The adapter ring is made of aluminum alloy and refined copper, and the sliding pattern is made by CNC machine tools, excellent hand touch.

2. Allows you to mount for Canon EF/EF‑S mount series lenses to for Fujifilm X mount series cameras.

3. The auto focus ring can provide you with a fast and smooth focusing experience, and can quickly adjust the aperture, shutter, ISO and other settings.

4. When installing and removing the lens, the lens release button can disconnect the circuit to protect the camera.

5. The inner wall is matted to absorb the radiated light efficiently, and the interface is tight without stray light, glares, and light leakage.

6. The bottom bracket can be removed freely, easy to install and use, universal 1/4 inch screw hole, strong compatibility.

7. Built‑in metal electronic contacts and data chip, can control the camera's aperture, shutter speed and ISO through the body; convenient and quick to use.

8. Built‑in firmware upgrade interface, upgrade compatible with new models and lenses on the market; make the adaptor rings more widely applicable.